I need a point to this question in order to answer it
25% 6 divided by 24 will give you the percentage of copper in the bar
Answer:
I think it's 36 from top to bottom
Step-by-step explanation:
and pls ask a real question, or ask more with info
Answer:
190
Step-by-step explanation:
Data provided in the question:
Confidence level = 99%
Therefore,
α = 1% = 0.01
[ from standard normal table ]
z-value for
= 2.58
Margin of error, E = $0.06
Standard deviation, σ = $0.32
Now,
n = 
Here,
n is the sample size (or the minimum number of gas stations )
on substituting the respective values, we get
=
=
= 13.76²
= 189.3376 ≈ 190
Hence,
minimum number of gas stations that she should include in her sample is 190
Answer:
c)
Step-by-step explanation:
For a function the value of the variable "x" must correspond to a single value of "y"
Hope this helps